Ie. Marko et al., Efficient preparation of trisubstituted alkenes using the SmI2 modification of the Julia-Lythgoe olefination of ketones and aldehydes, TETRAHEDRON, 57(13), 2001, pp. 2609-2619
High yields of di- and tri-substituted alkenes are: obtained by a modificat
ion of the Julia-Lythgoe olefination reaction involving the in situ capture
of intermediate beta -alkoxy-sulfones by benzoyl or trimethylsilyl chlorid
e, followed by SmI2-mediated reductive elimination. This novel protocol als
o provides a connective preparation of dienyl ethers, which are important p
artners in Diels-Alder cycloadditions. (C) 2001 Elsevier Science Ltd. All r
ights reserved.